Most Japanese government bond yields rose on Wednesday, tracking U.S. Treasury yields higher after Federal Reserve Chair Jerome Powell"s hawkish testimony overnight. The 10-year JGB yield rose 1 basis point to 0.065%, while the 20-year JGB yield rose 0.5 basis point to 0.455%. U.S. Treasury yields rose during Asian trading hours after Powell overnight came close to indicating the Fed will speed up the pace of its asset purchases at a meeting later this month. The 30-year JGB yield rose 0.5 basis point to 0.670%, while the 40-year JGB yield was unchanged at 0.720%. The two-year JGB was untraded and the yield remained flat, while the five-year yield rose 0.5 basis point to minus 0.090%. Benchmark 10-year JGB futures fell 0.07 point to 151.87, with a trading volume of 20,177 lots.